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🟢 8: Th 2/5 - collisions
🟢 8: Th 2/5 - collisions
Today, we'll finish talking about elastic and inelastic collisions and then do a few problems. Remember that momentum is conserved in all collisions, but energy is only conserved in elastic collisions. Also remember that in a collision between two objects, each of the objects experiences an equal impulse (the momentum equivalent to Newton's 3rd Law).
Presentation: Collisions (we'll do some sample problems found here)
Homework: Optionally review the two videos below. QUIZ on Impulse and Momentum in 1-D on Thursday, February 12th Monday, February 9th.
Optional extra practice: pages 2 and 3 in Momentum Packet. (SOLUTIONS to Cons Momentum CompuSheet & SOLUTIONS to Momentum Practice Problems p 3)
In the following video, the chart is a useful method, but if you'd rather express the conservation of momentum as an equation like we did conservation of energy, that would be acceptable and probably faster. Focus on understanding the concepts of momentum conservation here.
Below is an example of how to solve a perfectly inelastic collision the equation way, which is preferred over the chart method.
🟩8: F 2/6 - 📖 collision problems
🟩8: F 2/6 - 📖 collision problems
Today, we'll solidify our understanding of collision problems.
Optional extra practice: 📖 textbook Ch 9 collisions problems: #C9, C17, 8, 19, 21, 22, 30, 54, 64, 66, 69. pages 2 and 3 in Momentum Packet. (SOLUTIONS to Cons Momentum CompuSheet & SOLUTIONS to Momentum Practice Problems p 3)
Homework: Finish collision problems. QUIZ on Impulse and Momentum in 1-D on Thursday, February 12th Monday, February 9th.
💚 8: M 2/9 - momentum & energy
💚 8: M 2/9 - momentum & energy
QUIZ on Impulse and Momentum in 1-D Today! POSTPONED to Thursday, February 12th.
Today, we'll start class by discussing a classic physics problem - the ballistic pendulum. This problem combines ideas of conservation of momentum and conservation of energy.
Then, we'll do momentum and energy practice problems.
Optional Extra Practice: 📖 textbook Ch 10 - Momentum & Energy problems: 83, 86, 87.
Homework: Finish Momentum & Energy problems. QUIZ on Impulse and Momentum in 1-D on Thursday, February 12th.
If you missed class or need support on this problem, you may watch this video:
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